package cn.laixueit;

import cn.hutool.core.collection.CollectionUtil;
import cn.hutool.core.util.StrUtil;
import cn.hutool.crypto.digest.DigestUtil;
import org.junit.Test;

import java.io.File;
import java.io.IOException;
import java.util.LinkedHashMap;
import java.util.LinkedList;
import java.util.List;

/**
 * @author duxiang
 * @date 2024/2/5 9:47
 */
public class Demo2 {

    @Test
    public  void t18() throws IOException {
        LinkedList<LinkedHashMap<Integer, List>> list = new LinkedList<LinkedHashMap<Integer, List>>();
        if(CollectionUtil.isEmpty(list)){
            list.add(null);
        }
        LinkedHashMap<Integer, List> map = list.get(0);
        System.out.println(map);
    }


}

